Jace, Reality Sculptor is a rare Legendary Planeswalker — Jace card from Reality Fracture (FRA), collector number 300. Current market price: $1.79 (foil $3.68), TCGplayer market prices via Scryfall.
+1: Empower Jace X, where X is the number of Islands you control. −3: Until your next turn, whenever a creature attacks you or a planeswalker you control, it gets -5/-0 until end of turn. 0: Exile all but the bottom card of each opponent's library. Activate only if there are twenty-five or more loyalty counters among Jaces you control.